China SHENZIEN CHUANGRI SEIKO TECINOLOGY CO..LTD Company cases

How do planetary gears reduce speed?

A planetary gearhead takes a high-speed, low-torque input, say from an electric motor, then increases torque and reduces speed at the output by the gearhead ratio. This lets motors run at higher, more-efficient rpms in equipment that operates at low speeds. It also reduces inertia reflected back to the motor, increasing stability. And using a planetary gearhead often lets machine builders reduce the size and cost of motion-control hardware. Planetary units with helical gears, rather than spur gears, have a larger contact ratio. The contact ratio is the number of teeth in mesh at any given moment. While typical spur gearing has a 1.5 contact ratio, helical gearing more than doubles it to 3.3. Benefits of higher contact ratios include: The gearhead is for continuous-duty applications. It can run nonstop without exceeding 140Â°F and last more than 30,000 hr. • 30 to 50% more torque capacity than equivalent spur-type planetary gearing. • Better load sharing, which increases life. • Smoother and quieter operation. • Backlash reduced by as much as 2 arc-min.

China SHENZIEN CHUANGRI SEIKO TECINOLOGY CO..LTD Company Cases

How do planetary gears reduce speed?

Worm Gear Reducer

Helical Gear Reducer

Planetary Gear Reducer

Vertical Gear Reducer

Bevel Gear Reducer

Motor Speed Reducer

Planetary Speed Reducer